Photothermal effect for Fe3O4 nanoparticles contained in micelles induced by near-infrared light

Near infrared (NIR) light induced photothermal effect for Fe₃O₄ nanoparticles, contained in Pluronic F127 micelles, has been studied and it exhibits high photothermal converting efficiency. Heat is found to be rapidly generated in micelles containing Fe₃O₄ nanoparticles by NIR laser irradiation. Upon irradiation at 808 nm light and with mass concentration of Fe₃O₄ nanoparticles in 4 g/L, the micelle temperature increase is higher than 34°C for 10min irradiation. The maximum temperature of micelles containing Fe₃O₄ nanoparticles in 4 g/L reaches 62°C.     

近红外光谱在加工监测方面的应用

为有效的监控工业生产过程，希望测量技术能够提供快速的信息．近年来，近红外光谱作为一种分析工具常用在许多化学或生物化学生产过程中．对于过程监控来说，与其他方法相比近红外光谱的优点是简单，快速，不破坏样品及无需样品的预处理．回顾了近年来近红外光谱在过程控制方面的应用．